Suction roll



June 14, 1932. A. N. RUSSELL. 1,862,909

sucTioN ROLL original Filed Jan. 9, 1.928

@o fo FIGLI O INVENTOR 4J ANDREwNRussEu.

Wwf/fc; .ATTORNEYS Patented .lune 14, 1932 Umrn l'raras PATENT crisis.'

ANIREW'N. RUSSELL, OF LACHINE, QUEBEC, CANADA, ASSIGN OR TO THE PAPERAND TEXTILE MACHINERY COMPANY, OF SANDUSKY, OHIO SUCTION vROLLApplication filed January 9, 1928, Serial No. 245,496. Renewed February18, 1929.

rlhis invention relates to new and useful improvements in suction rolls,and the main object of the invention is to provide simple and effectivemeans for adjusting the suction box within the roll in the radialdirection, so that it will contact with the interior of the roll under apredetermined pressure.

Another object is to provide suction boxv adjusting mea-ns which will beoperated from one end of the suction roll.

A further object is to provide a suction roll so mounted that it will bedirectly driven from the outside of the frame.

A still further object is to provide means within the driving sleeve toallow easy access to the suction box and its adjusting and movel mentlimiting mechanism.

In my invention I provide a suction roll within which is mounted thesuction 'box.`

roll and a limiting screw is secured tothe Y bearing at this end andcontacts with a collar secured to the said discharge pipe. The other endof the suction box is slidably mounted on a guide secured to a pin .uponwhich are mounted, in spaced relation, antifriction bearings whichsupport a distance casting secured to the interior of the sleeve whichmay be driven from any source. This end of the box is so mounted that itrests on springs in the guides which allow deflection of the box withinthe roll. Means are also provided for regulating the pressure of thepacking against the roll and means are pro-` vided for limiting theupward movement of the box. The pressure regulating means is controlledfrom the end of the roll remote from the end in which said means ismounted.

In the drawing which illustrates my improved suction roll Figure 1 is alongitudinal cross sectional elevation of the suction roll.

Figure 2 is a sectional end elevation taken 1 on the line 2 2 Figure 1.y

Referring more particularly to the drawing, 11 designates a perforatedcylindrical shell, the ends of which are secured to the flanged vsleeves12 and 13 by any suitable means. The sleeve 13 is rotatably mounted on abushing 14 mounted in the lower half of the bearing 15. The other sleeve12 is rotatably mounted on the bushing 16 secured tothe lower half ofthe bearing 17. Extending through the aperture 18 of the sleeve 13 isthe suction pipe connection 19, one end of which is connected to theelbow connection 20 which is connected to a `source of suction notshown. vided with a flange 21 which is connected to one end of a suctionbox 22. The upper edges 23 of the suction box are provided with channels24 to receive the packing or sealing strips 25. vided with adjustablesealing members 26, which can be moved towards or away from the centreof the roll. The sealing members are mounted on the threaded spindles27, access to the ends of which may be obtained through the openings 27aformed in the flanges 28 and 29 of the sleeves 13 and 12, respectively.The end'30 of the box is closed by means of the web 31. The bottom 32 ofthe box is spaced from the inner surface of e. the cylindrical shell andsuitable vsupporting rollers 33 are mounted in bearings 34 projectingdownwardly from the bottom of the box. These rollers are normally clearof the inside of the shell when the suction roll is in operation. Theend of the suction box has a centrally disposed bearing 35 and rotatablymounted in said bearing is one end of a worm shaft 36, the other end ofwhich is mounted in a bearing 37 formed in a cap or cover 38. The end ofthe box has depending sides 39 which frictionally engage with the sidesof a guide 40, preferably made of square cross section with a vrecess 41formed therein. A pair of adjusting screws 42 are mounted in thread- Theother end of the pipe is pro- The ends of the suction box are eachproedapertures 43 formed in the lower rib 44. Secured to reduced sections 45of the screws are the guide washers 46 for the compression springs 47.rlhe upper ends of the springs fit into guides 52 slidably mounted inapertures 48 formed in the upper rib 49. Extending upwardly from thewashers are the worm wheel spindles 50 to which are secured the wormwheels 51 which engage with worms formed in the worm shaft 86. Theconnection between the guides 52 and the spindles 50 is threaded, sothat on rotation of the spindles, they move upwardly or downward-- ly toregulate the pressure of the packing or sealing members against theinterior-of' the roll. A worm shaft rotating rod 53 extends horizontallythrough the centre of the suction pipe and is supported on a bearing 54formed in the box. The rod 53 is connected to the worm shaft by means ofa connecting rod 54a and universal connections 55 at each end of therod. The operating rod passes through the elbow connection to the sourceof suction, and a suitable gland 56 is provided to seal the hole in theelbow. A suitable square end 57 is formed in the rod at the exposed endthereof for a spanner, key, or the lilre. The guide is secured to asuction box supporting spindle 58, which extends through the sleeve 12and has formed on its surfaces, in spaced relation, collars forantifriction bearings 58a, rlhese bearings are mounted on a flangedcylindrical distance piece 59 fitting into the sleeve 12. The distancepiece is secured by bolts 60 to the sleeve and to a flange coupling 61.A cover plate 62 protects the end of the box supporting spindle. Securedto the bearing 15 is the washer 63 having an outwardly extending lug 64,through which is mounted an adjusting screw 65 which limits the upwardmovement of the suction box at the discharge end thereof, by contactingwith a collar 66 secured to the suction pipe. The guide 40 has anoutwardly extending lip 67 which covers a sealing gland 68 secured tothe face 69 of the distance piece 59, to prevent water from entering thebearings. The guides 52 are provided with shoulders 70 whichengage withthe undersidecof the rib or web 44 to limit the upward movement of thesuction box.

In operation the box within the roll is resiliently supported on thecompression springs in the guide and the pressure of the springs may beadjusted by rotating the worm rotating shaft. The worm rotating shaftturns worm wheels and the threaded spindles attached thereto to raisethe box to contact with the inner surface of the roll and depress thespring. The screws passing through the bottom of the guide also allowrough adjustments to be made. The upward movement of the box is limitedby the shoulders formed in the upper spring guides contacting withtheupper rib of the guide. The cylindrical distance piece within thesleeve 12 may be easily and quickly removed to allow access to thesuction box adjusting mechanism. Rollers are provided for supporting thesuction box on the bottom inner surface of the perforated cylinder whenthe supporting spindles for the said suction box are removed. Theantifriction bearings between the cylindrical distance piece and thesuction box supporting spindle reduced the friction between them to aminimum, so that there is no tendency for the box to rotate with theperforated cylinder. The roll is directly driven through the sleeve 12.

The device is very simple in construction and operation and providesmeans which may be operated from one side of the machine, or roll, foradjusting the pressure of the suction box within the suction roll. Meansare also provided for limiting the upward movement of the box. Themechanism is accessible and easily controlled and adjusted to suit thewear on the sealing members at the top of the box.

Having thus described my invention, what I claim is 1. ln a suctionroll, a perforated cylinder, a suction box within the cylinder' andsupported on flexible means carried by said cylinder.

2. In a suction roll, a perforated cylinder, a suction box within theroll and supporte-tl on springs, and. means for limitingT the radialmovement of the box.

3. ln a suction roll, a perforated cylinder, a suction box non-rotatablymounted within the cylinder, means for lin'iiting the-radial movement ofthe box at one end, and adjustable resilient means for suj'nporting thebox at the other end, said supporting means being secured to a spindleextending inwardly of said cylinder.

4. ln a suction roll. a perforated cylinder secured to sleeves rotatablymounted in bearings, a suction box non-rotatably Vmounted for radialmovement in the cylinder, means to limit the radial movement of one endof said box, and mechanically operated means for regulating the pressurebetween the box and the cylinder and for limiting the radial movement ofthe box at the other end of the cylinder.

5. ln a suction roll, a perforated cylinder secured to sleeves rotatablymounted in bearings, a suction box non-rotatably mounted in thecylinder, one end of the box being slidably mounted ou a guide andresiliently supported on springs. mechanical means for adjusting theeffective pressure of the springs, means slidably mounted in the guidesand contacting` with the springs for limiting the radial movement of thebox. and means carried by the sleeve adjacent said guide to supportsame.

6. In a suction rolha perforated cylinder.

other end of the box Which has depending Walls engaging With a guidesecured to a spindle projecting from the adj acenty sleeve, springsmounted in said guide, and 'spindles 1 secured to the Worm Wheels Vandprovided With means adapted4 to limit theradial move-' f ment of saidbox.: v

7. In a suction roll, a perforated cylinder v secured at its ends tosleeves rotatably mounted on bearings, a suction box non-rotatablymounted Within the cylinder and passing through one of the sleeves;means for limiting radial movement of said suction box end, a boxsupporting spindle mounted in antifriction bearings in the other sleeve,a guide secured to the spindle, adjusting screws in the lower part ofthe guide and having spring holders secured thereto, compression springsin the said holders, upper spring holders slidably mounted in the guideand adjustably secured to the box and adapted to limit the radialmovement of same, and means operable from the suction pipe end of thebox for adjusting the compression ofthe springs.

8. In combination With a suction box for suction rolls, gear drivenmeans for moving an end of said box radially relatively to thelongitudinal axis of the roll and means for operating the same from apoint remote therefrom.

9. In combination with a suction box for suction rolls, gear drivenmeans carried by said suction box for moving an end of said box radiallyrelatively to the longitudinal axis of the roll, and means for operatingthe same from a point remote therefrom.

10. In combination With a suction box for suction rolls, means carriedby one end of said suction box for moving an end of said box radiallyrelatively to the longitudinalVA axis of the roll, and means foroperating the same from a point remote therefrom.

11. A suction roll comprising a shell, a suction box extendinglongitudinally Within said shell from end to end, gearing carried by thesuction box adjacent one end of the shell and adapted to actuate the boxradially relatively to the longitudinal axis of the roll and operatingmeans therefor connected thereto and extending to a point adjacent theopposite end of said suction box.

12. A suction roll comprising a shell, a suction box extendinglongitudinally within said shell from vend to end, a Worm andcooperating gear carried by the suction' box adjacent one end of theshell and adapted to actuate the box radially relatively to thelongitudinal axis of the roll and operating means therefor connectedthereto and extending to a point adjacent the opposite end of saidsuction box.

13. In combination With a suction box, gearing actuated means exteriorto said suction box for moving said box bodily radially and means foroperating the same, and means for actuating said operating means from apoint remote therefrom.

14. In combination with a suction box, gearing actuated means exteriorto said suction box for moving said box radially, said means actingagainst the suction box and against a part separate and independent ofsaid box, and means operating the moving means from a point remotetherefrom.

15. In combination with a suction box for suction rolls, gearing carriedby said box and adapted to move said box radially relatively to thelongitudinal axis of the roll, means for operating the same from a pointremotetherefrom and means adjacent said operating means for regulatingits operation.

16; A suction roll comprising a shell having one closed end, a suctionbox extending longitudinally Within said shell from end to end, gearingcarried by the suction box and adjacent the closed end of the shell andvadapted to actuate the box radially relatively to the longitudinal axisof the roll, operating means therefor connected thereto and.extending'to a point adjacent the opposite end of said suction box, andmeans for actuating the opposite end of said box radially.

17. In combination with a. suction box for suc-tion rolls, a guideyielding box supportf ing means carried by said guide, gearing carriedby said box and adapted to actuate said supporting means, and means foractuating said gearing.

18. In combination With a suction box for suction rolls, a guide,yielding box 'supportl ing means carried by said guide, gearing carriedby said box and adapted to actuate said supporting means, and means forac- .tuatingsaid gearing from a point remote therefrom.

19. In combination With a suction box for suction rolls, a guide, boxsupporting means carried by said guide, gearing carried-by said box andadapted to actuate said box supporting means, and means for actuatingsaid gearing. j

`20. In combination With a suction box for suction rolls, a guide, boxsupporting means carried by said guide, means for adjusting saidsupporting means, gearing carried by said box and adapted to actuatesaid box supporting means, and means for actuating said gearing from apoint remote therefrom.

21. In combinationwith a suction box forl suction rolls, a guide,supporting springs carried by said guide, box supporting means carriedby said box and` engaged by said springs, means for actuating saidsupports laterally relatively to said boxand means foroperatingsaidactuating means from a point remote therefrom.

22. `In combination Witha suction box for suction rolls, a guide,supporting springs carried by said guide, box supportingimeans carriedby said box and engaged by said springs, gearing for actuating saidsupports laterally relatively to said box, and means for operating saidgearing from a 4point remote therefrom.

23. In combination with a suction box for suction rolls, a guide,supporting 'springs carried by said guide, means for regulating theVcompression of said springs, `box supporting means carried by saidboxandengaged by said springs, means orfactuating said supports laterallyrelatively to saidbox, and means for operating said actuating-means froma point remote therefrom. y

24. A suction roll comprising a shell having a sleeve of reduceddiameter attached thereto, direct driving connectionscarried by saidsleeve, a spindle mounted Within said. sleeve, a guide carried thereby,and a suction box Within said shell and movably mounted at one end onsaid guide.

25. A suction roll comprising a shell having a sleeve of reduceddiameter attached thereto, direct drivingconnections carried by saidsleeve,`a lspindle journaled :insaid sleeve, a suction box Within saidshell and carried by said spindle, and means for movingsaid box radiallyrelatively to the 1longitudinal axis of the roll relatively to saidspindle.

26. A suction roll comprising a shell vhaving a sleeve of reduceddiameter attached thereto, a distancepiece mounted infone end ot saidshell, a spindle `journaled therein, a suction box Within said shell andcarried by said spindle, and means for moving -said box radiallyrelatively to the longitudinal axis of the roll relatively tosaid'spindle.

27. A suction roll comprising a-shellhaving a sleeve of reduced diameterattached' thereto, a suction box Within said roll, means f Within saidsleeve Jfor supporting one end of said box, and gear driven means-formoving said box radially relatively to the longitudinal axis of theroll.

28. A suction roll comprising a shellhaving a sleeve of reduced diameterattached thereto, a suction box Within saidroll, means Within saidsleeve for supporting'one `end of said box, .gear driven means formoving said box radially relatively to the longif tudinal axis of theroll, and means for operating said last named Vmeans from apoint remotetherefrom.

29. A suction roll comprising, al shell hav# ing` a closed end, asuction box Within-'Sad shell, gearing carriedby the suction box endnearer said closed end and adapted toi-move the box radiallyre'lativelyftoV the'long'itudinal: axis of thezroll,operatingmeanstherefor connectedthereto and extending to a point remote:from said gearing.

30. In combination, a suction roll shell vprovided with a reduced end, aspindle removably journaled gin said end, a member my hand.

.ANDREW N. RUSSELL.

